Bola Bowling Machine Ball, dimpled Yellow, Red both in 5oz or Orange 3oz ball that has high visibilty and extra bounce when coaching younger players.
BOLA 3oz Orange Hi-Viz Practice Balls. The Hi-Viz ball is designed to give higher bounce to enable players to practice back foot shots at reduced ball speeds. Players can play hooks and pulls safe in the knowledge that the softer ball will not cause injury. Also used for junior age groups to provide bounce when the BOLA is on it's shorter legs.
The extra bounce is useful for re-creating different batting conditions (such as a fast pitches) so that batters can gain experience of multifarious wickets and Hi-Viz balls are also increasingly popular with coaches for throw downs.